Question

In hydrogen spectrum, electron de-excite from fifth excited level to ground level. the ratio of number of lines from ultraviolet region to visible region is:

Answer 1

Answer:

5

th

excited state

=

6

th

shell

All types of transitions in

IR

region are

1

.

6

→

5

...

...

4

.

5

→

4

2

.

6

→

4

...

...

5

.

5

→

3

3

.

6

→

3

...

...

6

.

4

→

3

Number of lines in infrared region are

6

Answer 2

The Hydrogen spectrum is the spectrum of hydrogen divided into a number of spectral lines

Explanation:

• In the hydrogen spectrum, electrons de-excite from the fifth excited level to ground level. the ratio of the number of lines from the ultraviolet region to the visible region is equal to 6
• Electron is in the fifth excited state n=6
• Here the transition from n=6 lies in the Lyman series which is found in the Ultraviolet range
• Then the series lies in the Balmer series which is in the visible region
• Then in n=6 and in the fifth excited state, it lies in the infrared region.